./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:37:17,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:37:17,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:37:17,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:37:17,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:37:17,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:37:17,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:37:17,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:37:17,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:37:17,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:37:17,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:37:17,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:37:17,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:37:17,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:37:17,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:37:17,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:37:17,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:37:17,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:37:17,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:37:17,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:37:17,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:37:17,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:37:17,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:37:17,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:37:17,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:37:17,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:37:17,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:37:17,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:37:17,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:37:17,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:37:17,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:37:17,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:37:17,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:37:17,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:37:17,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:37:17,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:37:17,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:37:17,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:37:17,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:37:17,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:37:17,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:37:17,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:37:17,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:37:17,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:37:17,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:37:17,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:37:17,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:37:17,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:37:17,356 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:37:17,356 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:37:17,357 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:37:17,357 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:37:17,358 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:37:17,358 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:37:17,358 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:37:17,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:37:17,359 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:37:17,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:37:17,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:37:17,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:37:17,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:37:17,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:37:17,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:37:17,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:37:17,361 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:37:17,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:37:17,361 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:37:17,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:37:17,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:37:17,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:37:17,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:37:17,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:37:17,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:37:17,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:37:17,366 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:37:17,366 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 [2021-10-28 09:37:17,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:37:17,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:37:17,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:37:17,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:37:17,691 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:37:17,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-28 09:37:17,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/data/14911e18a/e24a53f4728c44e09fae0d684845b855/FLAG19a48e8b5 [2021-10-28 09:37:18,368 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:37:18,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2021-10-28 09:37:18,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/data/14911e18a/e24a53f4728c44e09fae0d684845b855/FLAG19a48e8b5 [2021-10-28 09:37:18,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/data/14911e18a/e24a53f4728c44e09fae0d684845b855 [2021-10-28 09:37:18,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:37:18,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:37:18,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:18,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:37:18,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:37:18,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:18" (1/1) ... [2021-10-28 09:37:18,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536832ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:18, skipping insertion in model container [2021-10-28 09:37:18,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:18" (1/1) ... [2021-10-28 09:37:18,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:37:18,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:37:19,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15496,15509] [2021-10-28 09:37:19,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:19,107 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:37:19,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15496,15509] [2021-10-28 09:37:19,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:19,226 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:37:19,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19 WrapperNode [2021-10-28 09:37:19,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:19,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:37:19,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:37:19,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:37:19,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:37:19,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:37:19,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:37:19,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:37:19,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:37:19,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:37:19,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:37:19,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:37:19,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (1/1) ... [2021-10-28 09:37:19,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:37:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:19,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:37:19,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:37:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:37:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:37:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:37:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:37:20,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:37:20,513 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-28 09:37:20,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:20 BoogieIcfgContainer [2021-10-28 09:37:20,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:37:20,516 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:37:20,516 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:37:20,525 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:37:20,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:37:20,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:37:18" (1/3) ... [2021-10-28 09:37:20,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6205bcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:37:20, skipping insertion in model container [2021-10-28 09:37:20,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:37:20,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:19" (2/3) ... [2021-10-28 09:37:20,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6205bcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:37:20, skipping insertion in model container [2021-10-28 09:37:20,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:37:20,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:20" (3/3) ... [2021-10-28 09:37:20,530 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2021-10-28 09:37:20,585 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:37:20,586 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:37:20,586 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:37:20,586 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:37:20,586 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:37:20,586 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:37:20,587 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:37:20,587 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:37:20,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:20,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 09:37:20,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:37:20,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:37:20,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:37:20,650 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:20,650 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:37:20,651 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:20,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 09:37:20,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:37:20,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:37:20,673 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:37:20,673 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:20,686 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 36#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 61#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 19#L83true main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 75#L914true assume 0 != main_~tmp~7; 69#L891true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L936-1true [2021-10-28 09:37:20,687 INFO L793 eck$LassoCheckResult]: Loop: 10#L936-1true assume !false; 92#L470true assume test_~splverifierCounter~0 < 4; 21#L471true test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 66#L479true assume !(0 != test_~tmp~3); 67#L479-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 101#L489true assume !(0 != test_~tmp___0~0); 86#L489-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 39#L499true assume 0 != test_~tmp___2~0; 59#L505-1true assume !(0 != ~pumpRunning~0); 6#L542true assume !(0 != ~systemActive~0); 48#L549true havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 38#L813true __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 35#L936true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 10#L936-1true [2021-10-28 09:37:20,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:20,693 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 09:37:20,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:20,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871339167] [2021-10-28 09:37:20,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:20,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:20,966 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:21,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1671401909, now seen corresponding path program 1 times [2021-10-28 09:37:21,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:21,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289380741] [2021-10-28 09:37:21,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:21,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:21,196 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:21,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash 42877029, now seen corresponding path program 1 times [2021-10-28 09:37:21,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:21,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606717060] [2021-10-28 09:37:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:21,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:21,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:21,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606717060] [2021-10-28 09:37:21,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606717060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:21,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:21,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:37:21,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886268206] [2021-10-28 09:37:21,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:21,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:37:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:37:21,630 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:21,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:21,931 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2021-10-28 09:37:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:37:21,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2021-10-28 09:37:21,945 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2021-10-28 09:37:21,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2021-10-28 09:37:21,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2021-10-28 09:37:21,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2021-10-28 09:37:21,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2021-10-28 09:37:21,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:37:21,968 INFO L681 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2021-10-28 09:37:21,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2021-10-28 09:37:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2021-10-28 09:37:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.4583333333333333) internal successors, (210), 143 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2021-10-28 09:37:22,022 INFO L704 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2021-10-28 09:37:22,023 INFO L587 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2021-10-28 09:37:22,024 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:37:22,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2021-10-28 09:37:22,027 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-10-28 09:37:22,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:37:22,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:37:22,029 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:37:22,029 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:22,029 INFO L791 eck$LassoCheckResult]: Stem: 493#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 449#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 450#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 422#L83 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 423#L914 assume 0 != main_~tmp~7; 480#L891 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 405#L936-1 [2021-10-28 09:37:22,031 INFO L793 eck$LassoCheckResult]: Loop: 405#L936-1 assume !false; 406#L470 assume test_~splverifierCounter~0 < 4; 426#L471 test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 427#L479 assume !(0 != test_~tmp~3); 476#L479-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 477#L489 assume !(0 != test_~tmp___0~0); 396#L489-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 453#L499 assume 0 != test_~tmp___2~0; 440#L505-1 assume !(0 != ~pumpRunning~0); 397#L542 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 398#L600 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 490#L574-1 assume !(0 == ~pumpRunning~0); 458#L549 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 452#L813 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 447#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 405#L936-1 [2021-10-28 09:37:22,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:22,031 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 09:37:22,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:22,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984846973] [2021-10-28 09:37:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:22,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,100 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1955219778, now seen corresponding path program 1 times [2021-10-28 09:37:22,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:22,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485397265] [2021-10-28 09:37:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:22,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:22,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:22,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485397265] [2021-10-28 09:37:22,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485397265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:22,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:22,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:37:22,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29113954] [2021-10-28 09:37:22,244 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:37:22,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:22,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:37:22,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:37:22,246 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:22,345 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2021-10-28 09:37:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:37:22,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2021-10-28 09:37:22,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-10-28 09:37:22,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2021-10-28 09:37:22,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2021-10-28 09:37:22,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-10-28 09:37:22,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2021-10-28 09:37:22,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:37:22,360 INFO L681 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-10-28 09:37:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2021-10-28 09:37:22,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-10-28 09:37:22,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.366120218579235) internal successors, (250), 182 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2021-10-28 09:37:22,381 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-10-28 09:37:22,381 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-10-28 09:37:22,382 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:37:22,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2021-10-28 09:37:22,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-10-28 09:37:22,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:37:22,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:37:22,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:37:22,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:22,386 INFO L791 eck$LassoCheckResult]: Stem: 836#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 783#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 784#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 755#L83 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 756#L914 assume 0 != main_~tmp~7; 819#L891 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 737#L936-1 [2021-10-28 09:37:22,387 INFO L793 eck$LassoCheckResult]: Loop: 737#L936-1 assume !false; 738#L470 assume test_~splverifierCounter~0 < 4; 759#L471 test_~tmp~3 := test_#t~nondet43;havoc test_#t~nondet43; 760#L479 assume !(0 != test_~tmp~3); 814#L479-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 834#L489 assume !(0 != test_~tmp___0~0); 728#L489-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 787#L499 assume 0 != test_~tmp___2~0; 774#L505-1 assume !(0 != ~pumpRunning~0); 729#L542 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 730#L600 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 832#L574-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 838#L821-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 800#L826-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 753#L702-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 754#L702-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 763#L708-1 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 764#L578-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 794#L549 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 786#L813 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 779#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 737#L936-1 [2021-10-28 09:37:22,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 09:37:22,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:22,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040178267] [2021-10-28 09:37:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:22,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,523 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1592970094, now seen corresponding path program 1 times [2021-10-28 09:37:22,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:22,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825049889] [2021-10-28 09:37:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:22,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:22,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:22,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2049041288, now seen corresponding path program 1 times [2021-10-28 09:37:22,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:22,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480732023] [2021-10-28 09:37:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:22,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:22,670 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:22,335 WARN L207 SmtUtils]: Spent 59.35 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 09:39:27,995 WARN L207 SmtUtils]: Spent 31.08 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 09:39:28,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:39:28 BoogieIcfgContainer [2021-10-28 09:39:28,167 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:39:28,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:39:28,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:39:28,168 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:39:28,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:20" (3/4) ... [2021-10-28 09:39:28,171 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:39:28,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:39:28,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:39:28,236 INFO L168 Benchmark]: Toolchain (without parser) took 129523.36 ms. Allocated memory was 92.3 MB in the beginning and 153.1 MB in the end (delta: 60.8 MB). Free memory was 58.5 MB in the beginning and 105.5 MB in the end (delta: -46.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,237 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:28,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.81 ms. Allocated memory is still 92.3 MB. Free memory was 58.3 MB in the beginning and 60.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.29 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 56.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,239 INFO L168 Benchmark]: Boogie Preprocessor took 56.05 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 54.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,240 INFO L168 Benchmark]: RCFGBuilder took 1120.20 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 54.4 MB in the beginning and 67.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,241 INFO L168 Benchmark]: BuchiAutomizer took 127651.11 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 66.8 MB in the beginning and 107.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 70.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,241 INFO L168 Benchmark]: Witness Printer took 67.41 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 105.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:28,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.81 ms. Allocated memory is still 92.3 MB. Free memory was 58.3 MB in the beginning and 60.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.29 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 56.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.05 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 54.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1120.20 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 54.4 MB in the beginning and 67.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127651.11 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 66.8 MB in the beginning and 107.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 70.5 MB. Max. memory is 16.1 GB. * Witness Printer took 67.41 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 105.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 469]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4938} State at position 1 is {NULL=0, NULL=4962, NULL=0, NULL=4938, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56bec7c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78bab2b5=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4398cb91=0, methaneLevelCritical=0, tmp=0, NULL=0, NULL=4942, retValue_acc=0, tmp___1=0, NULL=4940, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21d2f1ff=0, NULL=4947, NULL=4964, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17dbb8ed=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2179b4d6=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=4961, NULL=4953, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=4959, NULL=0, NULL=0, retValue_acc=1, NULL=0, tmp=1, NULL=4954, NULL=4956, tmp=1, NULL=4943, NULL=4960, head=0, NULL=0, NULL=0, tmp=0, NULL=4958, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b15375d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c32c51=0, NULL=0, NULL=4948, NULL=4951, NULL=4965, NULL=4950, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@291f855c=0, NULL=0, NULL=0, NULL=4955, tmp=0, NULL=4939, tmp___0=0, NULL=4949, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=4957, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f5ea530=0, NULL=0, NULL=4946, NULL=4941, retValue_acc=1, tmp___2=64, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=4945, NULL=4966, NULL=4963, NULL=4944, NULL=4952} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int pumpRunning = 0; [L535] int systemActive = 1; [L738] int waterLevel = 1; [L739] int methaneLevelCritical = 0; [L832] int cleanupTimeShifts = 4; [L905] int retValue_acc ; [L906] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L460] int splverifierCounter ; [L461] int tmp ; [L462] int tmp___0 ; [L463] int tmp___1 ; [L464] int tmp___2 ; [L467] splverifierCounter = 0 Loop: [L469] COND TRUE 1 [L471] COND TRUE splverifierCounter < 4 [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) [L542] COND FALSE !(\read(pumpRunning)) [L549] COND TRUE \read(systemActive) [L597] int tmp ; [L600] COND FALSE !(\read(pumpRunning)) [L571] int tmp ; [L574] COND TRUE ! pumpRunning [L694] int retValue_acc ; [L695] int tmp ; [L696] int tmp___0 ; [L818] int retValue_acc ; [L821] COND TRUE waterLevel < 2 [L822] retValue_acc = 1 [L823] return (retValue_acc); [L700] tmp = isHighWaterSensorDry() [L702] COND TRUE \read(tmp) [L703] tmp___0 = 0 [L707] retValue_acc = tmp___0 [L708] return (retValue_acc); [L576] tmp = isHighWaterLevel() [L578] COND FALSE !(\read(tmp)) [L929] int tmp ; [L930] int tmp___0 ; [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:39:28,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0516273a-50fe-4499-a0de-806b04831093/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...